John Levine skrev den 2013-12-13 04:00:
If example.net is a parked domain you can then protect it this way:
_dmarc.example.net CNAME _dmarc.parked.example.com

CNAME preserve DNSSEC ?

Yes, of course it does.  CNAME is a fundamental part of the DNS and
always has been.

i have seen CNAME used in MX records, its fundemental it works as designed

same problem some domains used in ADSP setup with is now depricated, just still used in spamassassin in wild

it does not work in ADSP

I don't know what you mean by "does not work" here, but it doesn't
matter because ADSP is dead, and DMARC does not use it.

MX and ADSP must NOT be ised with CNAME


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